68449398 has 16 divisors (see below), whose sum is σ = 138179520. Its totient is φ = 22603016.

The previous prime is 68449393. The next prime is 68449427. The reversal of 68449398 is 89394486.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68449398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52668 + ... + 53951.

It is an arithmetic number, because the mean of its divisors is an integer number (8636220).

Almost surely, 2^68449398 is an apocalyptic number.

68449398 is an abundant number, since it is smaller than the sum of its proper divisors (69730122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68449398 is a wasteful number, since it uses less digits than its factorization.

68449398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106731.

The product of its digits is 1492992, while the sum is 51.

The square root of 68449398 is about 8273.4151352389. The cubic root of 68449398 is about 409.0626972509.

The spelling of 68449398 in words is "sixty-eight million, four hundred forty-nine thousand, three hundred ninety-eight".